Locomotive



F. LJUNGSTROM LOCOMOTIVE.

APPLICATION FILED MAR. 27. 1919.

Patented Sept se r. ieaa FBEDRIK LJUNGSTRGM, OF BREVEK, LIIDINGON,

SW EDEN, ASEIGNOR TO AKTIE- RATION.

LOGOMOTIVE.

Application filed March 27, 1919. Serial No. 285,615.

T all whom it on (my concern Be it known that I, Franzen; LJUNes'rnor/r, chief engineer, subject or" the King of Sweden, residino' at Brevik, Lidingon, Sweden,

have invented certain new and usetnl Improvements in Locomotives, of which the following is .a specification. 1

The present invention relates to turbine driven locomotives provided with air coolers, that is, with air cooled condensers, and the invention has for its obj set to utilize the exhaust steam from the vacuum brake or any other braking apparatus driven by steam.

The invention primarily consists therein that the main machinery is combined with an air coolerof such capacity that at least so much steam will be condensed in it as is requisite to render the water of condensation capable of absorbing the heat of the eX- haust steam from the steam driven braking machine or brake device, and as the case may be, in addition thereto, the heat of exhaust steam from any other source the main machinery being also combined with a condenser receiving the water of condensation from the air cooler and the said steam or steams from said braking device. The water produced, which consists of a mixture of water of condensation coming; from the air cooler and condenser, is led into the boiler, Thus the quantity of water which has to be taken along with the locomotive is considerably reduced, the exhaust steam of the brakingdevice being utilized and led into the boiler in the form of water of condensation.

If the quantity of the water of condensation led off from the air cooler be sutlicient to condense other exhaust steam in addition to the steam discharged from the braking de-= vice, then such other steam may also be led into the condenser, where it is condensed in a similar manner.

The invention is illustrated in the accompanying drawing. In the drawing 1 is the locomotive and 2 the condenser car or tank. 3 is the motor or turbine for driving the locomotive and t is the braking machine. The main driving turbine 3 is connected by means of the pipe 6 with an air cooled condenser 5 arranged at the front of the locomotive, the said condenser being connected by means of a pipe 7 with the condenser 8. The water of condensation from the cooler 5 flows around the pipes of the condenser 8 from the inlet of the pipe 7 to the outlet 11.

The exhaust steam from the braking device 4: flows through the pipe 9 into the condenser 8 and then passes through tne pipes therein and the Water of condensation formed. from the exhaust braking steam flows into the water receptacle of the con.- denser car or tank by the pipe 10.

In order to feed the water through the pipe 7 a pump 12 may be connected to said pipe and this pump may be driven by a suitable power transmitting device 13 from the turbine 3.

In operation, the exhaust steam from the turbine 3 discharges through the pipe 6 and enters the air cooled condenser 5. The water resulting from the condensation in this condenser. is "fed through thepipe 7 and is discharged into the condenser 8. As the condenser 8 is provided with internal tubes, the water will flow around said tubes and will be discharged through the pipe ll with the tank or car 2.

The exhaust steam from th braking de vice t will be discharpjed through the pipe 9 and will enter the condenser 8, flow through the pipes in this condenser; and the condensate from the braking" steam will be discharged from. the pipe 10 into the car or tank 2. As before stated, the'water from the car or tank 2 may be used to feed the boiler of the locomotive. It will be understood that the condensate resulting from the turbine steam will be used to condense the steam from the braking device a, so that the steam from said braking device may be utilized for feed water purposes.

What Iclaim and desire to secure by Letters- Patent is:

In a locomotive, the combination with a steam actuated driving turbine and a steam actuated braking device, of an air cooled condenser of such capacity that at least so much steam will be condensed in it as is requisite to enable the water of condensation to absorb the heat of the exhaust steam from the braking device, means for conducting the exhaust steam from the turbine q x i 1 1,429,746 7 to said condenser, a second condenser, means and means for discharging the Water result- 10 for conveying the Water of condensation ing from the. condensation of the braking from the air cooled condenser to the second steam from the secondcondenser. condenser, means for dischargingsaid Water In testimony whereof I aflix my signature 5 from the second condenser, a pipe. for conin presence of two Witnesses. v 'veying exhaust steam from the braking de-' I FREDBIK LJUNGSTROM.

vice to the second condenser, whereby the Witnesses: 1 exhaust braking steamlmay' be condensed by P. H. BERGROTH; the Water of condensation from the turbine, GRETA PREIN. 

